摘要:
A damping material is made of a porous member having an absolute characteristic impedance value of not less than 800 kg/m2·S in the frequency range of from 1.0 to 3.0 kHz. A damping method has steps of providing a damping material in the interior or on the periphery of a vibration-generating apparatus, characterized in that as the damping material there is used a compressible porous member having an air permeability of from 1×{fraction (1/10)}10 to 2×{fraction (1/10)}2 cc/cm2/sec based on an atmospheric pressure difference of 2.039×{fraction (1/10)}4 mMH2O or a porous member having an absolute impedance value of not less than 800 kg/m2·S in a frequency range of from 1 to 3 kHz or one obtained by providing a film layer thereon. A disc drive has a motor for rotating a disc as a data recording medium and a damping material provided in the interior and/or on the periphery of a housing having at least a space in which the disc can be mounted.
摘要翻译:阻尼材料由1.0〜3.0kHz的频率范围内的绝对特性阻抗值为800kg / m 2·s以上的多孔构件构成。 阻尼方法具有在振动产生装置的内部或外围设置阻尼材料的步骤,其特征在于,作为阻尼材料,使用具有1×10 1/10 10至2×1 / 基于2.039×1 / 104mMH2O的大气压差或绝对阻抗值不低于800kg / m 2的多孔构件,在1〜3kHz的频率范围内为102cc / cm 2 / sec, 通过在其上设置膜层。 盘驱动器具有用于使作为数据记录介质的盘旋转的电动机和设置在至少具有可安装盘的空间的壳体的内部和/或周边的阻尼材料。
摘要:
A pressure sensitive adhesive label for a hard disk drive includes a substrate, an information indicator formed on one side of the substrate, and a pressure sensitive adhesive layer formed on the other side of the substrate. By applying onto the outer surface of a housing of a hard disk drive, the pressure sensitive adhesive label can reduce noise caused by operation of the hard disk drive. The pressure sensitive adhesive label for a hard disk drive can concurrently exhibit various information indicating functions and the function of reducing noise caused by operation of a hard disk drive. By using the pressure sensitive adhesive label, a method can reduce noise caused by operation of a hard disk drive.